Hekou in context: Street-network sprawl trends

Hekou in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
HekouJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hekou plotted against Jiangxi and China. While Jiangxi and China both followed a zig-zag trend with an overall increase, Hekou's new street additions followed a zig-zag trend with an overall increase. Most recently, Hekou's incremental SNDi rose from 2.59 to 3.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hekou ranked 45th out of 82 cities in Jiangxi and 862nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.25
Rank in China
1022nd of 1843
Rank in Jiangxi
57th of 82

Entire Network (Aggregate)

SNDi value
2.81
Rank in China
862nd of 1843
Rank in Jiangxi
45th of 82

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
HekouSalagaKasba Tadla

In new street additions, Hekou and Kasba Tadla both fluctuated in its street-construction patterns, while Salaga built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Hekou fluctuated in connectivity, while Salaga became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Kasba Tadla grew more disconnected from 1975 through 1976-1990, then improved. Notably, Hekou had a more connected network than Salaga in 1975 but the two have since reversed their relative ranking.